Biscogniauxia nummularia

Biscogniauxia nummularia
Scientific classification
Domain:	Eukaryota
Kingdom:	Fungi
Division:	Ascomycota
Class:	Sordariomycetes
Order:	Xylariales
Family:	Graphostromataceae
Genus:	Biscogniauxia
Species:	B. nummularia
Binomial name
Biscogniauxia nummularia (Bull.) Kuntze (1891)
Synonyms
Biscogniauxia bulliardii (Tul. & C.Tul.) Kuntze Hypoxylon nummularium Bull. (1790) Hypoxylon nummularium var. nummularium Bull. Kommamyce bulliardii (Tul. & C.Tul.) Nieuwl. Nummularia anthracina (J.C.Schmidt) Traverso Nummularia bulliardii Tul. & C.Tul. Nummularia nummularia (Bull.) J.Schröt. Numulariola nummularia (Bull.) House Sphaeria anthracina J.C.Schmidt Sphaeria nummularia DC.

Biscogniauxia nummularia is a plant pathogen in the family Graphostromataceae, known as the beech tarcrust.^[1] The specific epithet is derived from the Latin "nummus" meaning a coin, referring to the often rounded and coin-like encrustations.